The Gyeongsan Substation – Battery Energy Storage System is a 48,000kW energy storage project located in South Korea.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2015 and was commissioned in 2016.


The Gyeongsan Substation – Battery Energy Storage System is owned by Korea Electric Power (100%).

The key applications of the project are frequency regulation, transmission congestion relief and voltage support.

Contractors involved

Korea Electric Power and LG Chem have delivered the battery energy storage project.

Additional information

Kepco installed 48 MW (12 MWh) of Li-ion battery based energy storage system for frequency regulation in 2015.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.